My builds are being tagged for custom content but I don't use custom content.

@Sashas0nic Thanks for the above and for your patience; I wanted to try a few things and the constant going in and out took a lot longer than I expected. And then I wrote out a reply to you but the page timed out and I lost it all.

First, I downloaded and ran the application. It located some mods by LittleMsSam that keep kitchen cabinets, shelves, and paintings visible while walls are down.

Second, I removed these mods and re-disabled and removed all mods altogether. I started the game, checked for CC tag and it was still there.

Third, I removed my custom paintings again. Checked for CC tag and it was gone. Finally I was able to upload my build without the CC tag.

I uploaded a Realm of Magic build prior to the 9/17 patch, however. This build had custom paintings and did not get the CC tag. So the recent patch might have still affected the paintings somehow. I thought it would be cool to have paintings of the Magic Realm hung around Magic Headquarters but it's not that important. Still, kind of a drag that it's no longer available.